<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
	   p.son{
			font-size: 120px;
			color: yellow;
		}
		p{    
			font-size:30px;
			color:red;
		}
		.father .son{        
			font-size:500px;
			color: pink;
		}
		.son{
			font-size: 60px;
			color: blue;
		}
		.father #baby{
			font-size:12px;
			color: orange;
		}

	</style>
</head>
<body>
	<div class="father">
		<p class="son" id="baby">14期威武</p>
	</div>
</body>
</html>